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[LPC1768 GCC_CR exporter] Fixed linker description 

* Divide AHB SRAM for USB and Ethernet RAM regions
* Add NOLOAD keyword for .bss sections to avoid redundant data in final
image
pull/1357/head
Toyomasa Watarai 2015-09-27 19:52:11 +09:00
parent ecf04be150
commit 1f1c68ce19
1 changed files with 13 additions and 6 deletions
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19
libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC176X/TOOLCHAIN_GCC_CR/LPC1768.ld
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@ -8,7 +8,8 @@ MEMORY
/* Define each memory region */ /* Define each memory region */
MFlash512 (rx) : ORIGIN = 0x0, LENGTH = 0x80000 /* 512k */ MFlash512 (rx) : ORIGIN = 0x0, LENGTH = 0x80000 /* 512k */
RamLoc32 (rwx) : ORIGIN = 0x100000C8, LENGTH = 0x7F38 /* 32k */ RamLoc32 (rwx) : ORIGIN = 0x100000C8, LENGTH = 0x7F38 /* 32k */
RamAHB32 (rwx) : ORIGIN = 0x2007c000, LENGTH = 0x8000 /* 32k */ RamAHB_USB (rwx) : ORIGIN = 0x2007c000, LENGTH = 0x4000 /* 16k */
RamAHB_Eth (rwx) : ORIGIN = 0x20080000, LENGTH = 0x4000 /* 16k */
} }
/* Define a symbol for the top of each memory region */ /* Define a symbol for the top of each memory region */
@ -110,11 +111,11 @@ SECTIONS
*(.data.$RAM2*) *(.data.$RAM2*)
*(.data.$RamAHB32*) *(.data.$RamAHB32*)
. = ALIGN(4) ; . = ALIGN(4) ;
} > RamAHB32 AT>MFlash512 } > RamAHB_USB AT>MFlash512
/* MAIN DATA SECTION */ /* MAIN DATA SECTION */
.uninit_RESERVED : ALIGN(4) .uninit_RESERVED(NOLOAD) : ALIGN(4)
{ {
KEEP(*(.bss.$RESERVED*)) KEEP(*(.bss.$RESERVED*))
} > RamLoc32 } > RamLoc32
@ -130,15 +131,21 @@ SECTIONS
} > RamLoc32 AT>MFlash512 } > RamLoc32 AT>MFlash512
.bss_RAM2 : ALIGN(4) .bss_RAM2(NOLOAD) : ALIGN(4)
{ {
*(.bss.$RAM2*) *(.bss.$RAM2*)
*(.bss.$RamAHB32*) *(.bss.$RamAHB32*)
*(AHBSRAM0)
. = ALIGN(4) ; . = ALIGN(4) ;
} > RamAHB32 } > RamAHB_USB
.bss_RAM3(NOLOAD) : ALIGN(4)
{
*(AHBSRAM1)
. = ALIGN(4) ;
} > RamAHB_Eth
/* MAIN BSS SECTION */ /* MAIN BSS SECTION */
.bss : ALIGN(4) .bss(NOLOAD) : ALIGN(4)
{ {
_bss = .; _bss = .;
*(.bss*) *(.bss*)